1                 : // $Id: ExpressionParserTest.cc 59 2007-07-17 14:43:23Z tb $
       2                 : 
       3                 : /*
       4                 :  * STX Expression Parser C++ Framework v0.7
       5                 :  * Copyright (C) 2007 Timo Bingmann
       6                 :  *
       7                 :  * This library is free software; you can redistribute it and/or modify it
       8                 :  * under the terms of the GNU Lesser General Public License as published by the
       9                 :  * Free Software Foundation; either version 2.1 of the License, or (at your
      10                 :  * option) any later version.
      11                 :  *
      12                 :  * This library is distributed in the hope that it will be useful, but WITHOUT
      13                 :  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      14                 :  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
      15                 :  * for more details.
      16                 :  *
      17                 :  * You should have received a copy of the GNU Lesser General Public License
      18                 :  * along with this library; if not, write to the Free Software Foundation,
      19                 :  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      20                 :  */
      21                 : 
      22                 : #include <cppunit/extensions/HelperMacros.h>
      23                 : 
      24                 : #include "ExpressionParser.h"
      25                 : 
      26                 : #include <stdlib.h>
      27                 : #include <boost/lexical_cast.hpp>
      28                 : 
      29                 : class ExpressionParserTest : public CPPUNIT_NS::TestFixture
      30               2 : {
      31               3 :     CPPUNIT_TEST_SUITE( ExpressionParserTest );
      32               1 :     CPPUNIT_TEST(test1);
      33               2 :     CPPUNIT_TEST_SUITE_END();
      34                 : 
      35                 : protected:
      36                 : 
      37              18 :     inline stx::AnyScalar eval(const std::string &str)
      38                 :     {
      39              18 :         stx::ParseTree pt = stx::parseExpression(str);
      40                 : 
      41                 :         // test reevaluation of the toString().
      42                 :         {
      43              17 :             std::string strexpr = pt.toString();
      44              17 :             stx::ParseTree pt2 = stx::parseExpression(strexpr);
      45                 : 
      46              17 :             CPPUNIT_ASSERT( strexpr == pt2.toString() );
      47                 :         }
      48                 : 
      49              17 :         stx::BasicSymbolTable bst;
      50              17 :         bst.setVariable("a", 42);
      51              17 :         bst.setVariable("e", 2.7183);
      52                 : 
      53              17 :         return pt.evaluate(bst);
      54                 :     }
      55                 : 
      56               1 :     void test1()
      57                 :     {
      58                 :         using namespace stx;
      59                 : 
      60               1 :         CPPUNIT_ASSERT( eval("5 + 4.5") == 9.5 );
      61                 : 
      62               2 :         CPPUNIT_ASSERT( eval(" \"abc\" + \"def\" ") == "abcdef" );
      63                 : 
      64               2 :         CPPUNIT_ASSERT( eval("5 * 6 + 7 * 2 - 2") == 42 );
      65                 : 
      66               2 :         CPPUNIT_ASSERT( eval("(integer)(5 * 1.5)") == 7 );
      67                 : 
      68               2 :         CPPUNIT_ASSERT( eval("((integer)(5 * 1.5 >= 1)) + 5") == 6 );
      69                 : 
      70               2 :         CPPUNIT_ASSERT( eval("(integer)(e)") == 2 );
      71                 : 
      72               2 :         CPPUNIT_ASSERT( eval(" logn(exp(21)) + sqrt(pow(21,2)) == 42 ") == true );
      73                 : 
      74               2 :         CPPUNIT_ASSERT( eval("10 > 5 AND 5.2 <= 42.2 OR 2 == 4") == true );
      75                 : 
      76               2 :         CPPUNIT_ASSERT( eval("(a * 2 + 4) / 2 == 44") == true );
      77                 : 
      78               2 :         CPPUNIT_ASSERT( eval("-5 + 4.5") == -0.5 );
      79                 : 
      80               2 :         CPPUNIT_ASSERT( eval("-5 + 4.5 + (-a)") == -42.5 );
      81                 : 
      82               2 :         CPPUNIT_ASSERT( eval(" \"newline \\n quoted \\\" a\\\\bc\" + \"def\" ") == "newline \n quoted \" a\\bcdef" );
      83                 : 
      84               2 :         CPPUNIT_ASSERT( eval("(0 < 1) && (4 > 2) && (1 = 1) && (2 == 2) && (2 != 4) && (1 <= 1) && (1 >= 1) && (2 =< 3) && (4 => 1)") == true );
      85                 : 
      86               2 :         CPPUNIT_ASSERT( eval("!(true AND false) || (NOT true OR FALSE)") == true );
      87                 : 
      88               2 :         CPPUNIT_ASSERT_THROW( eval("5 +"), stx::ExpressionParserException );
      89                 : 
      90               1 :         CPPUNIT_ASSERT_THROW( eval("5 + FUNCXYZ()"), stx::UnknownSymbolException );
      91                 : 
      92               1 :         CPPUNIT_ASSERT_THROW( eval("5 + xyz"), stx::UnknownSymbolException );
      93                 : 
      94               1 :         CPPUNIT_ASSERT_THROW( eval("5 + COS(2,2)"), stx::BadFunctionCallException );
      95                 : 
      96                 :         {
      97               1 :             std::string xmlstr = stx::parseExpressionXML("((integer)(5 * 1.5 >= 1)) + 5");
      98               2 :             CPPUNIT_ASSERT( xmlstr.size() == 1010 );
      99                 :         }
     100               1 :     }
     101                 : };
     102               0 : 
     103               3 : CPPUNIT_TEST_SUITE_REGISTRATION( ExpressionParserTest );